/* $NetBSD: ntp_config.c,v 1.9 2007/01/06 19:45:22 kardel Exp $ */ /* * ntp_config.c - read and apply configuration information */ #ifdef HAVE_CONFIG_H # include #endif #ifdef HAVE_NETINFO # include #endif #include "ntpd.h" #include "ntp_io.h" #include "ntp_unixtime.h" #include "ntp_refclock.h" #include "ntp_filegen.h" #include "ntp_stdlib.h" #include #include #include #include #include #ifdef HAVE_SYS_PARAM_H #include #endif #include #ifndef SIGCHLD # define SIGCHLD SIGCLD #endif #if !defined(VMS) # ifdef HAVE_SYS_WAIT_H # include # endif #endif /* VMS */ #ifdef SYS_WINNT # include HANDLE ResolverThreadHandle = NULL; #endif /* SYS_WINNT */ /* * [Bug 467]: Some linux headers collide with CONFIG_PHONE and CONFIG_KEYS * so #include these later. */ #include "ntp_config.h" #include "ntp_cmdargs.h" extern int priority_done; /* * These routines are used to read the configuration file at * startup time. An entry in the file must fit on a single line. * Entries are processed as multiple tokens separated by white space * Lines are considered terminated when a '#' is encountered. Blank * lines are ignored. */ /* * Translation table - keywords to function index */ struct keyword { const char *text; int keytype; }; /* * Command keywords */ static struct keyword keywords[] = { { "automax", CONFIG_AUTOMAX }, { "broadcast", CONFIG_BROADCAST }, { "broadcastclient", CONFIG_BROADCASTCLIENT }, { "broadcastdelay", CONFIG_BDELAY }, { "calldelay", CONFIG_CDELAY}, #ifdef OPENSSL { "crypto", CONFIG_CRYPTO }, #endif /* OPENSSL */ { "controlkey", CONFIG_CONTROLKEY }, { "disable", CONFIG_DISABLE }, { "driftfile", CONFIG_DRIFTFILE }, { "enable", CONFIG_ENABLE }, { "end", CONFIG_END }, { "filegen", CONFIG_FILEGEN }, { "fudge", CONFIG_FUDGE }, { "includefile", CONFIG_INCLUDEFILE }, { "keys", CONFIG_KEYS }, { "keysdir", CONFIG_KEYSDIR }, { "logconfig", CONFIG_LOGCONFIG }, { "logfile", CONFIG_LOGFILE }, { "manycastclient", CONFIG_MANYCASTCLIENT }, { "manycastserver", CONFIG_MANYCASTSERVER }, { "multicastclient", CONFIG_MULTICASTCLIENT }, { "peer", CONFIG_PEER }, { "phone", CONFIG_PHONE }, { "pidfile", CONFIG_PIDFILE }, { "discard", CONFIG_DISCARD }, { "requestkey", CONFIG_REQUESTKEY }, { "restrict", CONFIG_RESTRICT }, { "revoke", CONFIG_REVOKE }, { "server", CONFIG_SERVER }, { "setvar", CONFIG_SETVAR }, { "statistics", CONFIG_STATISTICS }, { "statsdir", CONFIG_STATSDIR }, { "tick", CONFIG_ADJ }, { "tinker", CONFIG_TINKER }, { "tos", CONFIG_TOS }, { "trap", CONFIG_TRAP }, { "trustedkey", CONFIG_TRUSTEDKEY }, { "ttl", CONFIG_TTL }, { "", CONFIG_UNKNOWN } }; /* * "peer", "server", "broadcast" modifier keywords */ static struct keyword mod_keywords[] = { { "autokey", CONF_MOD_SKEY }, { "burst", CONF_MOD_BURST }, { "iburst", CONF_MOD_IBURST }, { "key", CONF_MOD_KEY }, { "maxpoll", CONF_MOD_MAXPOLL }, { "minpoll", CONF_MOD_MINPOLL }, { "mode", CONF_MOD_MODE }, /* refclocks */ { "noselect", CONF_MOD_NOSELECT }, { "preempt", CONF_MOD_PREEMPT }, { "true", CONF_MOD_TRUE }, { "prefer", CONF_MOD_PREFER }, { "ttl", CONF_MOD_TTL }, /* NTP peers */ { "version", CONF_MOD_VERSION }, { "dynamic", CONF_MOD_DYNAMIC }, { "", CONFIG_UNKNOWN } }; /* * "restrict" modifier keywords */ static struct keyword res_keywords[] = { { "ignore", CONF_RES_IGNORE }, { "limited", CONF_RES_LIMITED }, { "kod", CONF_RES_DEMOBILIZE }, { "lowpriotrap", CONF_RES_LPTRAP }, { "mask", CONF_RES_MASK }, { "nomodify", CONF_RES_NOMODIFY }, { "nopeer", CONF_RES_NOPEER }, { "noquery", CONF_RES_NOQUERY }, { "noserve", CONF_RES_NOSERVE }, { "notrap", CONF_RES_NOTRAP }, { "notrust", CONF_RES_NOTRUST }, { "ntpport", CONF_RES_NTPPORT }, { "version", CONF_RES_VERSION }, { "", CONFIG_UNKNOWN } }; /* * "trap" modifier keywords */ static struct keyword trap_keywords[] = { { "port", CONF_TRAP_PORT }, { "interface", CONF_TRAP_INTERFACE }, { "", CONFIG_UNKNOWN } }; /* * "fudge" modifier keywords */ static struct keyword fudge_keywords[] = { { "flag1", CONF_FDG_FLAG1 }, { "flag2", CONF_FDG_FLAG2 }, { "flag3", CONF_FDG_FLAG3 }, { "flag4", CONF_FDG_FLAG4 }, { "refid", CONF_FDG_REFID }, /* this mapping should be cleaned up (endianness, \0) - kd 20041031 */ { "stratum", CONF_FDG_STRATUM }, { "time1", CONF_FDG_TIME1 }, { "time2", CONF_FDG_TIME2 }, { "", CONFIG_UNKNOWN } }; /* * "filegen" modifier keywords */ static struct keyword filegen_keywords[] = { { "disable", CONF_FGEN_FLAG_DISABLE }, { "enable", CONF_FGEN_FLAG_ENABLE }, { "file", CONF_FGEN_FILE }, { "link", CONF_FGEN_FLAG_LINK }, { "nolink", CONF_FGEN_FLAG_NOLINK }, { "type", CONF_FGEN_TYPE }, { "", CONFIG_UNKNOWN } }; /* * "type" modifier keywords */ static struct keyword fgen_types[] = { { "age", FILEGEN_AGE }, { "day", FILEGEN_DAY }, { "month", FILEGEN_MONTH }, { "none", FILEGEN_NONE }, { "pid", FILEGEN_PID }, { "week", FILEGEN_WEEK }, { "year", FILEGEN_YEAR }, { "", CONFIG_UNKNOWN} }; /* * "enable", "disable" modifier keywords */ static struct keyword flags_keywords[] = { { "auth", PROTO_AUTHENTICATE }, { "bclient", PROTO_BROADCLIENT }, { "calibrate", PROTO_CAL }, { "kernel", PROTO_KERNEL }, { "monitor", PROTO_MONITOR }, { "ntp", PROTO_NTP }, { "stats", PROTO_FILEGEN }, { "", CONFIG_UNKNOWN } }; /* * "discard" modifier keywords */ static struct keyword discard_keywords[] = { { "average", CONF_DISCARD_AVERAGE }, { "minimum", CONF_DISCARD_MINIMUM }, { "monitor", CONF_DISCARD_MONITOR }, { "", CONFIG_UNKNOWN } }; /* * "tinker" modifier keywords */ static struct keyword tinker_keywords[] = { { "step", CONF_CLOCK_MAX }, { "panic", CONF_CLOCK_PANIC }, { "dispersion", CONF_CLOCK_PHI }, { "stepout", CONF_CLOCK_MINSTEP }, { "allan", CONF_CLOCK_ALLAN }, { "huffpuff", CONF_CLOCK_HUFFPUFF }, { "freq", CONF_CLOCK_FREQ }, { "", CONFIG_UNKNOWN } }; /* * "tos" modifier keywords */ static struct keyword tos_keywords[] = { { "minclock", CONF_TOS_MINCLOCK }, { "maxclock", CONF_TOS_MAXCLOCK }, { "minsane", CONF_TOS_MINSANE }, { "floor", CONF_TOS_FLOOR }, { "ceiling", CONF_TOS_CEILING }, { "cohort", CONF_TOS_COHORT }, { "mindist", CONF_TOS_MINDISP }, { "maxdist", CONF_TOS_MAXDIST }, { "maxhop", CONF_TOS_MAXHOP }, { "beacon", CONF_TOS_BEACON }, { "orphan", CONF_TOS_ORPHAN }, { "", CONFIG_UNKNOWN } }; #ifdef OPENSSL /* * "crypto" modifier keywords */ static struct keyword crypto_keywords[] = { { "cert", CONF_CRYPTO_CERT }, { "gqpar", CONF_CRYPTO_GQPAR }, { "host", CONF_CRYPTO_RSA }, { "ident", CONF_CRYPTO_IDENT }, { "iffpar", CONF_CRYPTO_IFFPAR }, { "leap", CONF_CRYPTO_LEAP }, { "mvpar", CONF_CRYPTO_MVPAR }, { "pw", CONF_CRYPTO_PW }, { "randfile", CONF_CRYPTO_RAND }, { "sign", CONF_CRYPTO_SIGN }, { "", CONFIG_UNKNOWN } }; #endif /* OPENSSL */ /* * Address type selection, IPv4 or IPv4. * Used on various lines. */ static struct keyword addr_type[] = { { "-4", CONF_ADDR_IPV4 }, { "-6", CONF_ADDR_IPV6 }, { "", CONFIG_UNKNOWN } }; /* * "logconfig" building blocks */ struct masks { const char *name; unsigned long mask; }; static struct masks logcfg_class[] = { { "clock", NLOG_OCLOCK }, { "peer", NLOG_OPEER }, { "sync", NLOG_OSYNC }, { "sys", NLOG_OSYS }, { (char *)0, 0 } }; static struct masks logcfg_item[] = { { "info", NLOG_INFO }, { "allinfo", NLOG_SYSINFO|NLOG_PEERINFO|NLOG_CLOCKINFO|NLOG_SYNCINFO }, { "events", NLOG_EVENT }, { "allevents", NLOG_SYSEVENT|NLOG_PEEREVENT|NLOG_CLOCKEVENT|NLOG_SYNCEVENT }, { "status", NLOG_STATUS }, { "allstatus", NLOG_SYSSTATUS|NLOG_PEERSTATUS|NLOG_CLOCKSTATUS|NLOG_SYNCSTATUS }, { "statistics", NLOG_STATIST }, { "allstatistics", NLOG_SYSSTATIST|NLOG_PEERSTATIST|NLOG_CLOCKSTATIST|NLOG_SYNCSTATIST }, { "allclock", (NLOG_INFO|NLOG_STATIST|NLOG_EVENT|NLOG_STATUS)<name) { if (strncmp(*s, m->name, strlen(m->name)) == 0) { *s += strlen(m->name); return m->mask; } else { m++; } } return 0; } /* * get_match - find logmask value */ static unsigned long get_match( char *s, struct masks *m ) { while (m->name) { if (strcmp(s, m->name) == 0) { return m->mask; } else { m++; } } return 0; } /* * get_logmask - build bitmask for ntp_syslogmask */ static unsigned long get_logmask( char *s ) { char *t; unsigned long offset; unsigned long mask; t = s; offset = get_pfxmatch(&t, logcfg_class); mask = get_match(t, logcfg_item); if (mask) return mask << offset; else msyslog(LOG_ERR, "logconfig: illegal argument %s - ignored", s); return 0; } /* * getconfig - get command line options and read the configuration file */ void getconfig( int argc, char *argv[] ) { register int i; int c; int errflg; int status; int istart; int peerversion; int minpoll; int maxpoll; int ttl; long stratum; unsigned long ul; keyid_t peerkey; u_char *peerkeystr; u_long fudgeflag; u_int peerflags; int hmode; struct sockaddr_storage peeraddr; struct sockaddr_storage maskaddr; FILE *fp[MAXINCLUDELEVEL+1]; FILE *includefile; int includelevel = 0; char line[MAXLINE]; char *(tokens[MAXTOKENS]); int ntokens = 0; int tok = CONFIG_UNKNOWN; struct interface *localaddr; struct refclockstat clock_stat; FILEGEN *filegen; /* * Initialize, initialize */ errflg = 0; #ifndef SYS_WINNT config_file = CONFIG_FILE; #else temp = CONFIG_FILE; if (!ExpandEnvironmentStrings((LPCTSTR)temp, (LPTSTR)config_file_storage, (DWORD)sizeof(config_file_storage))) { msyslog(LOG_ERR, "ExpandEnvironmentStrings CONFIG_FILE failed: %m\n"); exit(1); } config_file = config_file_storage; temp = ALT_CONFIG_FILE; if (!ExpandEnvironmentStrings((LPCTSTR)temp, (LPTSTR)alt_config_file_storage, (DWORD)sizeof(alt_config_file_storage))) { msyslog(LOG_ERR, "ExpandEnvironmentStrings ALT_CONFIG_FILE failed: %m\n"); exit(1); } alt_config_file = alt_config_file_storage; #endif /* SYS_WINNT */ res_fp = NULL; ntp_syslogmask = NLOG_SYNCMASK; /* set more via logconfig */ /* * install a non default variable with this daemon version */ (void) sprintf(line, "daemon_version=\"%s\"", Version); set_sys_var(line, strlen(line)+1, RO); /* * Say how we're setting the time of day */ (void) sprintf(line, "settimeofday=\"%s\"", set_tod_using); set_sys_var(line, strlen(line)+1, RO); /* * Initialize the loop. */ loop_config(LOOP_DRIFTINIT, 0.); getCmdOpts(argc, argv); if ( (fp[0] = fopen(FindConfig(config_file), "r")) == NULL #ifdef HAVE_NETINFO /* If there is no config_file, try NetInfo. */ && check_netinfo && !(config_netinfo = get_netinfo_config()) #endif /* HAVE_NETINFO */ ) { fprintf(stderr, "getconfig: Couldn't open <%s>\n", FindConfig(config_file)); msyslog(LOG_INFO, "getconfig: Couldn't open <%s>", FindConfig(config_file)); #ifdef SYS_WINNT /* Under WinNT try alternate_config_file name, first NTP.CONF, then NTP.INI */ if ((fp[0] = fopen(FindConfig(alt_config_file), "r")) == NULL) { /* * Broadcast clients can sometimes run without * a configuration file. */ fprintf(stderr, "getconfig: Couldn't open <%s>\n", FindConfig(alt_config_file)); msyslog(LOG_INFO, "getconfig: Couldn't open <%s>", FindConfig(alt_config_file)); return; } #else /* not SYS_WINNT */ return; #endif /* not SYS_WINNT */ } for (;;) { if (tok == CONFIG_END) break; if (fp[includelevel]) tok = gettokens(fp[includelevel], line, tokens, &ntokens); #ifdef HAVE_NETINFO else tok = gettokens_netinfo(config_netinfo, tokens, &ntokens); #endif /* HAVE_NETINFO */ if (tok == CONFIG_UNKNOWN) { if (includelevel > 0) { fclose(fp[includelevel--]); continue; } else { break; } } switch(tok) { case CONFIG_PEER: case CONFIG_SERVER: case CONFIG_MANYCASTCLIENT: case CONFIG_BROADCAST: if (tok == CONFIG_PEER) hmode = MODE_ACTIVE; else if (tok == CONFIG_SERVER) hmode = MODE_CLIENT; else if (tok == CONFIG_MANYCASTCLIENT) hmode = MODE_CLIENT; else hmode = MODE_BROADCAST; if (ntokens < 2) { msyslog(LOG_ERR, "No address for %s, line ignored", tokens[0]); break; } istart = 1; memset((char *)&peeraddr, 0, sizeof(peeraddr)); peeraddr.ss_family = default_ai_family; switch (matchkey(tokens[istart], addr_type, 0)) { case CONF_ADDR_IPV4: peeraddr.ss_family = AF_INET; istart++; break; case CONF_ADDR_IPV6: peeraddr.ss_family = AF_INET6; istart++; break; } status = getnetnum(tokens[istart], &peeraddr, 0, t_UNK); if (status == -1) break; /* Found IPv6 address */ if(status != 1) { errflg = -1; } else { errflg = 0; if ( #ifdef REFCLOCK !ISREFCLOCKADR(&peeraddr) && #endif ISBADADR(&peeraddr)) { msyslog(LOG_ERR, "attempt to configure invalid address %s", stoa(&peeraddr)); break; } /* * Shouldn't be able to specify multicast * address for server/peer! * and unicast address for manycastclient! */ if (peeraddr.ss_family == AF_INET) { if (((tok == CONFIG_SERVER) || (tok == CONFIG_PEER)) && #ifdef REFCLOCK !ISREFCLOCKADR(&peeraddr) && #endif IN_CLASSD(ntohl(((struct sockaddr_in*)&peeraddr)->sin_addr.s_addr))) { msyslog(LOG_ERR, "attempt to configure invalid address %s", stoa(&peeraddr)); break; } if ((tok == CONFIG_MANYCASTCLIENT) && !IN_CLASSD(ntohl(((struct sockaddr_in*)&peeraddr)->sin_addr.s_addr))) { msyslog(LOG_ERR, "attempt to configure invalid address %s", stoa(&peeraddr)); break; } } else if(peeraddr.ss_family == AF_INET6) { if (((tok == CONFIG_SERVER) || (tok == CONFIG_PEER)) && #ifdef REFCLOCK !ISREFCLOCKADR(&peeraddr) && #endif IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6*)&peeraddr)->sin6_addr)) { msyslog(LOG_ERR, "attempt to configure in valid address %s", stoa(&peeraddr)); break; } if ((tok == CONFIG_MANYCASTCLIENT) && !IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6*)&peeraddr)->sin6_addr)) { msyslog(LOG_ERR, "attempt to configure in valid address %s", stoa(&peeraddr)); break; } } } if (peeraddr.ss_family == AF_INET6 && isc_net_probeipv6() != ISC_R_SUCCESS) break; peerversion = NTP_VERSION; minpoll = NTP_MINDPOLL; maxpoll = NTP_MAXDPOLL; peerkey = 0; peerkeystr = (u_char *)"*"; peerflags = 0; ttl = 0; istart++; for (i = istart; i < ntokens; i++) switch (matchkey(tokens[i], mod_keywords, 1)) { case CONF_MOD_VERSION: if (i >= ntokens-1) { msyslog(LOG_ERR, "peer/server version requires an argument"); errflg = 1; break; } peerversion = atoi(tokens[++i]); if ((u_char)peerversion > NTP_VERSION || (u_char)peerversion < NTP_OLDVERSION) { msyslog(LOG_ERR, "inappropriate version number %s, line ignored", tokens[i]); errflg = 1; } break; case CONF_MOD_KEY: if (i >= ntokens-1) { msyslog(LOG_ERR, "key: argument required"); errflg = 1; break; } peerkey = (int)atol(tokens[++i]); peerflags |= FLAG_AUTHENABLE; break; case CONF_MOD_MINPOLL: if (i >= ntokens-1) { msyslog(LOG_ERR, "minpoll: argument required"); errflg = 1; break; } minpoll = atoi(tokens[++i]); if (minpoll < NTP_MINPOLL) { msyslog(LOG_INFO, "minpoll: provided value (%d) is below minimum (%d)", minpoll, NTP_MINPOLL); minpoll = NTP_MINPOLL; } break; case CONF_MOD_MAXPOLL: if (i >= ntokens-1) { msyslog(LOG_ERR, "maxpoll: argument required" ); errflg = 1; break; } maxpoll = atoi(tokens[++i]); if (maxpoll > NTP_MAXPOLL) { msyslog(LOG_INFO, "maxpoll: provided value (%d) is above maximum (%d)", maxpoll, NTP_MAXPOLL); maxpoll = NTP_MAXPOLL; } break; case CONF_MOD_PREFER: peerflags |= FLAG_PREFER; break; case CONF_MOD_PREEMPT: peerflags |= FLAG_PREEMPT; break; case CONF_MOD_NOSELECT: peerflags |= FLAG_NOSELECT; break; case CONF_MOD_TRUE: peerflags |= FLAG_TRUE; case CONF_MOD_BURST: peerflags |= FLAG_BURST; break; case CONF_MOD_IBURST: peerflags |= FLAG_IBURST; break; case CONF_MOD_DYNAMIC: peerflags |= FLAG_DYNAMIC; break; #ifdef OPENSSL case CONF_MOD_SKEY: peerflags |= FLAG_SKEY | FLAG_AUTHENABLE; break; #endif /* OPENSSL */ case CONF_MOD_TTL: if (i >= ntokens-1) { msyslog(LOG_ERR, "ttl: argument required"); errflg = 1; break; } ttl = atoi(tokens[++i]); if (ttl >= MAX_TTL) { msyslog(LOG_ERR, "ttl: invalid argument"); errflg = 1; } break; case CONF_MOD_MODE: if (i >= ntokens-1) { msyslog(LOG_ERR, "mode: argument required"); errflg = 1; break; } ttl = atoi(tokens[++i]); break; case CONFIG_UNKNOWN: errflg = 1; break; } if (minpoll > maxpoll) { msyslog(LOG_ERR, "config error: minpoll > maxpoll"); errflg = 1; } if (errflg == 0) { if (peer_config(&peeraddr, ANY_INTERFACE_CHOOSE(&peeraddr), hmode, peerversion, minpoll, maxpoll, peerflags, ttl, peerkey, peerkeystr) == 0) { msyslog(LOG_ERR, "configuration of %s failed", stoa(&peeraddr)); } } else if (errflg == -1) { save_resolve(tokens[1], hmode, peerversion, minpoll, maxpoll, peerflags, ttl, peerkey, peerkeystr); } break; case CONFIG_DRIFTFILE: if (ntokens >= 2) stats_config(STATS_FREQ_FILE, tokens[1]); else stats_config(STATS_FREQ_FILE, (char *)0); stats_write_period = stats_write_tolerance = 0; if (ntokens >= 3) stats_write_period = 60 * atol(tokens[2]); if (stats_write_period <= 0) stats_write_period = 3600; if (ntokens >= 4) { double ftemp; sscanf(tokens[3], "%lf", &ftemp); stats_write_tolerance = ftemp / 100; } break; case CONFIG_PIDFILE: if (ntokens >= 2) stats_config(STATS_PID_FILE, tokens[1]); else stats_config(STATS_PID_FILE, (char *)0); break; case CONFIG_END: for ( i = 0; i <= includelevel; i++ ) { fclose(fp[i]); } break; case CONFIG_INCLUDEFILE: if (ntokens < 2) { msyslog(LOG_ERR, "includefile needs one argument"); break; } if (includelevel >= MAXINCLUDELEVEL) { fprintf(stderr, "getconfig: Maximum include file level exceeded.\n"); msyslog(LOG_INFO, "getconfig: Maximum include file level exceeded."); break; } includefile = fopen(FindConfig(tokens[1]), "r"); if (includefile == NULL) { fprintf(stderr, "getconfig: Couldn't open <%s>\n", FindConfig(tokens[1])); msyslog(LOG_INFO, "getconfig: Couldn't open <%s>", FindConfig(tokens[1])); break; } fp[++includelevel] = includefile; break; case CONFIG_LOGFILE: if (ntokens >= 2) { FILE *new_file; new_file = fopen(tokens[1], "a"); if (new_file != NULL) { NLOG(NLOG_SYSINFO) /* conditional if clause for conditional syslog */ msyslog(LOG_NOTICE, "logging to file %s", tokens[1]); if (syslog_file != NULL && fileno(syslog_file) != fileno(new_file)) (void)fclose(syslog_file); syslog_file = new_file; syslogit = 0; } else msyslog(LOG_ERR, "Cannot open log file %s", tokens[1]); } else msyslog(LOG_ERR, "logfile needs one argument"); break; case CONFIG_LOGCONFIG: for (i = 1; i < ntokens; i++) { int add = 1; int equals = 0; char * s = &tokens[i][0]; switch (*s) { case '+': case '-': case '=': add = *s == '+'; equals = *s == '='; s++; break; default: break; } if (equals) { ntp_syslogmask = get_logmask(s); } else { if (add) { ntp_syslogmask |= get_logmask(s); } else { ntp_syslogmask &= ~get_logmask(s); } } #ifdef DEBUG if (debug) printf("ntp_syslogmask = 0x%08lx (%s)\n", ntp_syslogmask, tokens[i]); #endif } break; case CONFIG_BROADCASTCLIENT: if (ntokens == 1) { proto_config(PROTO_BROADCLIENT, 1, 0., NULL); } else { proto_config(PROTO_BROADCLIENT, 2, 0., NULL); } break; case CONFIG_MULTICASTCLIENT: case CONFIG_MANYCASTSERVER: if (ntokens > 1) { istart = 1; memset((char *)&peeraddr, 0, sizeof(peeraddr)); peeraddr.ss_family = default_ai_family; switch (matchkey(tokens[istart], addr_type, 0)) { case CONF_ADDR_IPV4: peeraddr.ss_family = AF_INET; istart++; break; case CONF_ADDR_IPV6: peeraddr.ss_family = AF_INET6; istart++; break; } /* * Abuse maskaddr to store the prefered ip * version. */ memset((char *)&maskaddr, 0, sizeof(maskaddr)); maskaddr.ss_family = peeraddr.ss_family; for (i = istart; i < ntokens; i++) { memset((char *)&peeraddr, 0, sizeof(peeraddr)); peeraddr.ss_family = maskaddr.ss_family; if (getnetnum(tokens[i], &peeraddr, 1, t_UNK) == 1) proto_config(PROTO_MULTICAST_ADD, 0, 0., &peeraddr); } } else proto_config(PROTO_MULTICAST_ADD, 0, 0., NULL); if (tok == CONFIG_MULTICASTCLIENT) proto_config(PROTO_MULTICAST_ADD, 1, 0., NULL); else if (tok == CONFIG_MANYCASTSERVER) sys_manycastserver = 1; break; case CONFIG_KEYS: if (ntokens >= 2) { getauthkeys(tokens[1]); } break; case CONFIG_KEYSDIR: if (ntokens < 2) { msyslog(LOG_ERR, "Keys directory name required"); break; } keysdir = (char *)emalloc(strlen(tokens[1]) + 1); strcpy(keysdir, tokens[1]); break; case CONFIG_TINKER: for (i = 1; i < ntokens; i++) { int temp; double ftemp; temp = matchkey(tokens[i++], tinker_keywords, 1); if (i > ntokens - 1) { msyslog(LOG_ERR, "tinker: missing argument"); errflg++; break; } sscanf(tokens[i], "%lf", &ftemp); switch(temp) { case CONF_CLOCK_MAX: loop_config(LOOP_MAX, ftemp); break; case CONF_CLOCK_PANIC: loop_config(LOOP_PANIC, ftemp); break; case CONF_CLOCK_PHI: loop_config(LOOP_PHI, ftemp); break; case CONF_CLOCK_MINSTEP: loop_config(LOOP_MINSTEP, ftemp); break; case CONF_CLOCK_ALLAN: loop_config(LOOP_ALLAN, ftemp); break; case CONF_CLOCK_HUFFPUFF: loop_config(LOOP_HUFFPUFF, ftemp); break; case CONF_CLOCK_FREQ: loop_config(LOOP_FREQ, ftemp); break; } } break; case CONFIG_TOS: for (i = 1; i < ntokens; i++) { int temp; double ftemp; temp = matchkey(tokens[i++], tos_keywords, 1); if (i > ntokens - 1) { msyslog(LOG_ERR, "tos: missing argument"); errflg++; break; } sscanf(tokens[i], "%lf", &ftemp); switch(temp) { case CONF_TOS_MINCLOCK: proto_config(PROTO_MINCLOCK, 0, ftemp, NULL); break; case CONF_TOS_MAXCLOCK: proto_config(PROTO_MAXCLOCK, 0, ftemp, NULL); break; case CONF_TOS_MINSANE: proto_config(PROTO_MINSANE, 0, ftemp, NULL); break; case CONF_TOS_FLOOR: proto_config(PROTO_FLOOR, 0, ftemp, NULL); break; case CONF_TOS_CEILING: proto_config(PROTO_CEILING, 0, ftemp, NULL); break; case CONF_TOS_COHORT: proto_config(PROTO_COHORT, 0, ftemp, NULL); break; case CONF_TOS_MINDISP: proto_config(PROTO_MINDISP, 0, ftemp, NULL); break; case CONF_TOS_MAXDIST: proto_config(PROTO_MAXDIST, 0, ftemp, NULL); break; case CONF_TOS_MAXHOP: proto_config(PROTO_MAXHOP, 0, ftemp, NULL); break; case CONF_TOS_ORPHAN: proto_config(PROTO_ORPHAN, 0, ftemp, NULL); break; case CONF_TOS_BEACON: proto_config(PROTO_BEACON, 0, ftemp, NULL); break; } } break; case CONFIG_TTL: for (i = 1; i < ntokens && i < MAX_TTL; i++) { sys_ttl[i - 1] = (u_char) atoi(tokens[i]); sys_ttlmax = i - 1; } break; case CONFIG_DISCARD: for (i = 1; i < ntokens; i++) { int temp; temp = matchkey(tokens[i++], discard_keywords, 1); if (i > ntokens - 1) { msyslog(LOG_ERR, "discard: missing argument"); errflg++; break; } switch(temp) { case CONF_DISCARD_AVERAGE: res_avg_interval = atoi(tokens[i]); break; case CONF_DISCARD_MINIMUM: res_min_interval = atoi(tokens[i]); break; case CONF_DISCARD_MONITOR: mon_age = atoi(tokens[i]); break; default: msyslog(LOG_ERR, "discard: unknown keyword"); break; } } break; #ifdef OPENSSL case CONFIG_REVOKE: if (ntokens >= 2) sys_revoke = (u_char) max(atoi(tokens[1]), KEY_REVOKE); break; case CONFIG_AUTOMAX: if (ntokens >= 2) sys_automax = 1 << max(atoi(tokens[1]), 10); break; case CONFIG_CRYPTO: if (ntokens == 1) { crypto_config(CRYPTO_CONF_NONE, NULL); break; } for (i = 1; i < ntokens; i++) { int temp; temp = matchkey(tokens[i++], crypto_keywords, 1); if (i > ntokens - 1) { msyslog(LOG_ERR, "crypto: missing argument"); errflg++; break; } switch(temp) { case CONF_CRYPTO_CERT: crypto_config(CRYPTO_CONF_CERT, tokens[i]); break; case CONF_CRYPTO_RSA: crypto_config(CRYPTO_CONF_PRIV, tokens[i]); break; case CONF_CRYPTO_IDENT: crypto_config(CRYPTO_CONF_IDENT, tokens[i]); break; case CONF_CRYPTO_IFFPAR: crypto_config(CRYPTO_CONF_IFFPAR, tokens[i]); break; case CONF_CRYPTO_GQPAR: crypto_config(CRYPTO_CONF_GQPAR, tokens[i]); break; case CONF_CRYPTO_MVPAR: crypto_config(CRYPTO_CONF_MVPAR, tokens[i]); break; case CONF_CRYPTO_LEAP: crypto_config(CRYPTO_CONF_LEAP, tokens[i]); break; case CONF_CRYPTO_PW: crypto_config(CRYPTO_CONF_PW, tokens[i]); break; case CONF_CRYPTO_RAND: crypto_config(CRYPTO_CONF_RAND, tokens[i]); break; case CONF_CRYPTO_SIGN: crypto_config(CRYPTO_CONF_SIGN, tokens[i]); break; default: msyslog(LOG_ERR, "crypto: unknown keyword"); break; } } break; #endif /* OPENSSL */ case CONFIG_RESTRICT: if (ntokens < 2) { msyslog(LOG_ERR, "restrict requires an address"); break; } istart = 1; memset((char *)&peeraddr, 0, sizeof(peeraddr)); peeraddr.ss_family = default_ai_family; switch (matchkey(tokens[istart], addr_type, 0)) { case CONF_ADDR_IPV4: peeraddr.ss_family = AF_INET; istart++; break; case CONF_ADDR_IPV6: peeraddr.ss_family = AF_INET6; istart++; break; } /* * Assume default means an IPv4 address, except * if forced by a -4 or -6. */ if (STREQ(tokens[istart], "default")) { if (peeraddr.ss_family == 0) peeraddr.ss_family = AF_INET; } else if (getnetnum(tokens[istart], &peeraddr, 1, t_UNK) != 1) break; /* * Use peerversion as flags, peerkey as mflags. Ick. */ peerversion = 0; peerkey = 0; errflg = 0; SET_HOSTMASK(&maskaddr, peeraddr.ss_family); istart++; for (i = istart; i < ntokens; i++) { switch (matchkey(tokens[i], res_keywords, 1)) { case CONF_RES_MASK: if (i >= ntokens-1) { msyslog(LOG_ERR, "mask keyword needs argument"); errflg++; break; } i++; if (getnetnum(tokens[i], &maskaddr, 1, t_MSK) != 1) errflg++; break; case CONF_RES_IGNORE: peerversion |= RES_IGNORE; break; case CONF_RES_NOSERVE: peerversion |= RES_DONTSERVE; break; case CONF_RES_NOTRUST: peerversion |= RES_DONTTRUST; break; case CONF_RES_NOQUERY: peerversion |= RES_NOQUERY; break; case CONF_RES_NOMODIFY: peerversion |= RES_NOMODIFY; break; case CONF_RES_NOPEER: peerversion |= RES_NOPEER; break; case CONF_RES_NOTRAP: peerversion |= RES_NOTRAP; break; case CONF_RES_LPTRAP: peerversion |= RES_LPTRAP; break; case CONF_RES_NTPPORT: peerkey |= RESM_NTPONLY; break; case CONF_RES_VERSION: peerversion |= RES_VERSION; break; case CONF_RES_DEMOBILIZE: peerversion |= RES_DEMOBILIZE; break; case CONF_RES_LIMITED: peerversion |= RES_LIMITED; break; case CONFIG_UNKNOWN: errflg++; break; } } if (SOCKNUL(&peeraddr)) ANYSOCK(&maskaddr); if (!errflg) hack_restrict(RESTRICT_FLAGS, &peeraddr, &maskaddr, (int)peerkey, peerversion); break; case CONFIG_BDELAY: if (ntokens >= 2) { double tmp; if (sscanf(tokens[1], "%lf", &tmp) != 1) { msyslog(LOG_ERR, "broadcastdelay value %s undecodable", tokens[1]); } else { proto_config(PROTO_BROADDELAY, 0, tmp, NULL); } } break; case CONFIG_CDELAY: if (ntokens >= 2) { u_long ui; if (sscanf(tokens[1], "%ld", &ui) != 1) msyslog(LOG_ERR, "illegal value - line ignored"); else proto_config(PROTO_CALLDELAY, ui, 0, NULL); } break; case CONFIG_TRUSTEDKEY: for (i = 1; i < ntokens; i++) { keyid_t tkey; tkey = atol(tokens[i]); if (tkey == 0) { msyslog(LOG_ERR, "trusted key %s unlikely", tokens[i]); } else { authtrust(tkey, 1); } } break; case CONFIG_REQUESTKEY: if (ntokens >= 2) { if (!atouint(tokens[1], &ul)) { msyslog(LOG_ERR, "%s is undecodable as request key", tokens[1]); } else if (ul == 0) { msyslog(LOG_ERR, "%s makes a poor request keyid", tokens[1]); } else { #ifdef DEBUG if (debug > 3) printf( "set info_auth_key to %08lx\n", ul); #endif info_auth_keyid = (keyid_t)ul; } } break; case CONFIG_CONTROLKEY: if (ntokens >= 2) { keyid_t ckey; ckey = atol(tokens[1]); if (ckey == 0) { msyslog(LOG_ERR, "%s makes a poor control keyid", tokens[1]); } else { ctl_auth_keyid = ckey; } } break; case CONFIG_TRAP: if (ntokens < 2) { msyslog(LOG_ERR, "no address for trap command, line ignored"); break; } istart = 1; memset((char *)&peeraddr, 0, sizeof(peeraddr)); peeraddr.ss_family = default_ai_family; switch (matchkey(tokens[istart], addr_type, 0)) { case CONF_ADDR_IPV4: peeraddr.ss_family = AF_INET; istart++; break; case CONF_ADDR_IPV6: peeraddr.ss_family = AF_INET6; istart++; break; } if (getnetnum(tokens[istart], &peeraddr, 1, t_UNK) != 1) break; /* * Use peerversion for port number. Barf. */ errflg = 0; peerversion = 0; localaddr = 0; istart++; for (i = istart; i < ntokens-1; i++) switch (matchkey(tokens[i], trap_keywords, 1)) { case CONF_TRAP_PORT: if (i >= ntokens-1) { msyslog(LOG_ERR, "trap port requires an argument"); errflg = 1; break; } peerversion = atoi(tokens[++i]); if (peerversion <= 0 || peerversion > 32767) { msyslog(LOG_ERR, "invalid port number %s, trap ignored", tokens[i]); errflg = 1; } break; case CONF_TRAP_INTERFACE: if (i >= ntokens-1) { msyslog(LOG_ERR, "trap interface requires an argument"); errflg = 1; break; } memset((char *)&maskaddr, 0, sizeof(maskaddr)); maskaddr.ss_family = peeraddr.ss_family; if (getnetnum(tokens[++i], &maskaddr, 1, t_UNK) != 1) { errflg = 1; break; } localaddr = findinterface(&maskaddr); if (localaddr == NULL) { msyslog(LOG_ERR, "can't find interface with address %s", stoa(&maskaddr)); errflg = 1; } break; case CONFIG_UNKNOWN: errflg++; break; } if (!errflg) { if (peerversion != 0) ((struct sockaddr_in6*)&peeraddr)->sin6_port = htons( (u_short) peerversion); else ((struct sockaddr_in6*)&peeraddr)->sin6_port = htons(TRAPPORT); if (localaddr == NULL) localaddr = ANY_INTERFACE_CHOOSE(&peeraddr); if (!ctlsettrap(&peeraddr, localaddr, 0, NTP_VERSION)) msyslog(LOG_ERR, "can't set trap for %s, no resources", stoa(&peeraddr)); } break; case CONFIG_FUDGE: if (ntokens < 2) { msyslog(LOG_ERR, "no address for fudge command, line ignored"); break; } memset((char *)&peeraddr, 0, sizeof(peeraddr)); if (getnetnum(tokens[1], &peeraddr, 1, t_REF) != 1) break; if (!ISREFCLOCKADR(&peeraddr)) { msyslog(LOG_ERR, "%s is inappropriate address for the fudge command, line ignored", stoa(&peeraddr)); break; } memset((void *)&clock_stat, 0, sizeof clock_stat); fudgeflag = 0; errflg = 0; for (i = 2; i < ntokens-1; i++) { switch (c = matchkey(tokens[i], fudge_keywords, 1)) { case CONF_FDG_TIME1: if (sscanf(tokens[++i], "%lf", &clock_stat.fudgetime1) != 1) { msyslog(LOG_ERR, "fudge %s time1 value in error", stoa(&peeraddr)); errflg = i; break; } clock_stat.haveflags |= CLK_HAVETIME1; break; case CONF_FDG_TIME2: if (sscanf(tokens[++i], "%lf", &clock_stat.fudgetime2) != 1) { msyslog(LOG_ERR, "fudge %s time2 value in error", stoa(&peeraddr)); errflg = i; break; } clock_stat.haveflags |= CLK_HAVETIME2; break; case CONF_FDG_STRATUM: if (!atoint(tokens[++i], &stratum)) { msyslog(LOG_ERR, "fudge %s stratum value in error", stoa(&peeraddr)); errflg = i; break; } clock_stat.fudgeval1 = stratum; clock_stat.haveflags |= CLK_HAVEVAL1; break; case CONF_FDG_REFID: i++; memcpy(&clock_stat.fudgeval2, tokens[i], min(strlen(tokens[i]), 4)); clock_stat.haveflags |= CLK_HAVEVAL2; break; case CONF_FDG_FLAG1: case CONF_FDG_FLAG2: case CONF_FDG_FLAG3: case CONF_FDG_FLAG4: if (!atouint(tokens[++i], &fudgeflag) || fudgeflag > 1) { msyslog(LOG_ERR, "fudge %s flag value in error", stoa(&peeraddr)); errflg = i; break; } switch(c) { case CONF_FDG_FLAG1: c = CLK_FLAG1; clock_stat.haveflags|=CLK_HAVEFLAG1; break; case CONF_FDG_FLAG2: c = CLK_FLAG2; clock_stat.haveflags|=CLK_HAVEFLAG2; break; case CONF_FDG_FLAG3: c = CLK_FLAG3; clock_stat.haveflags|=CLK_HAVEFLAG3; break; case CONF_FDG_FLAG4: c = CLK_FLAG4; clock_stat.haveflags|=CLK_HAVEFLAG4; break; } if (fudgeflag == 0) clock_stat.flags &= ~c; else clock_stat.flags |= c; break; case CONFIG_UNKNOWN: errflg = -1; break; } } #ifdef REFCLOCK /* * If reference clock support isn't defined the * fudge line will still be accepted and syntax * checked, but will essentially do nothing. */ if (!errflg) { refclock_control(&peeraddr, &clock_stat, (struct refclockstat *)0); } #endif break; case CONFIG_STATSDIR: if (ntokens >= 2) stats_config(STATS_STATSDIR,tokens[1]); break; case CONFIG_STATISTICS: for (i = 1; i < ntokens; i++) { filegen = filegen_get(tokens[i]); if (filegen == NULL) { msyslog(LOG_ERR, "no statistics named %s available", tokens[i]); continue; } #ifdef DEBUG if (debug > 3) printf("enabling filegen for %s statistics \"%s%s\"\n", tokens[i], filegen->prefix, filegen->basename); #endif filegen->flag |= FGEN_FLAG_ENABLED; } break; case CONFIG_FILEGEN: if (ntokens < 2) { msyslog(LOG_ERR, "no id for filegen command, line ignored"); break; } filegen = filegen_get(tokens[1]); if (filegen == NULL) { msyslog(LOG_ERR, "unknown filegen \"%s\" ignored", tokens[1]); break; } /* * peerversion is (ab)used for filegen file (index) * peerkey is (ab)used for filegen type * peerflags is (ab)used for filegen flags */ peerversion = 0; peerkey = filegen->type; peerflags = filegen->flag; errflg = 0; for (i = 2; i < ntokens; i++) { switch (matchkey(tokens[i], filegen_keywords, 1)) { case CONF_FGEN_FILE: if (i >= ntokens - 1) { msyslog(LOG_ERR, "filegen %s file requires argument", tokens[1]); errflg = i; break; } peerversion = ++i; break; case CONF_FGEN_TYPE: if (i >= ntokens -1) { msyslog(LOG_ERR, "filegen %s type requires argument", tokens[1]); errflg = i; break; } peerkey = matchkey(tokens[++i], fgen_types, 1); if (peerkey == CONFIG_UNKNOWN) { msyslog(LOG_ERR, "filegen %s unknown type \"%s\"", tokens[1], tokens[i]); errflg = i; break; } break; case CONF_FGEN_FLAG_LINK: peerflags |= FGEN_FLAG_LINK; break; case CONF_FGEN_FLAG_NOLINK: peerflags &= ~FGEN_FLAG_LINK; break; case CONF_FGEN_FLAG_ENABLE: peerflags |= FGEN_FLAG_ENABLED; break; case CONF_FGEN_FLAG_DISABLE: peerflags &= ~FGEN_FLAG_ENABLED; break; } } if (!errflg) filegen_config(filegen, tokens[peerversion], (u_char)peerkey, (u_char)peerflags); break; case CONFIG_SETVAR: if (ntokens < 2) { msyslog(LOG_ERR, "no value for setvar command - line ignored"); } else { set_sys_var(tokens[1], strlen(tokens[1])+1, (u_short) (RW | ((((ntokens > 2) && !strcmp(tokens[2], "default"))) ? DEF : 0))); } break; case CONFIG_ENABLE: for (i = 1; i < ntokens; i++) { int flag; flag = matchkey(tokens[i], flags_keywords, 1); if (flag == CONFIG_UNKNOWN) { msyslog(LOG_ERR, "enable unknown flag %s", tokens[i]); errflg = 1; break; } proto_config(flag, 1, 0., NULL); } break; case CONFIG_DISABLE: for (i = 1; i < ntokens; i++) { int flag; flag = matchkey(tokens[i], flags_keywords, 1); if (flag == CONFIG_UNKNOWN) { msyslog(LOG_ERR, "disable unknown flag %s", tokens[i]); errflg = 1; break; } proto_config(flag, 0, 0., NULL); } break; case CONFIG_PHONE: for (i = 1; i < ntokens && i < MAXPHONE - 1; i++) { sys_phone[i - 1] = emalloc(strlen(tokens[i]) + 1); strcpy(sys_phone[i - 1], tokens[i]); } sys_phone[i] = NULL; break; case CONFIG_ADJ: { double ftemp; sscanf(tokens[1], "%lf", &ftemp); proto_config(PROTO_ADJ, 0, ftemp, NULL); } break; } } if (fp[0]) (void)fclose(fp[0]); #ifdef HAVE_NETINFO if (config_netinfo) free_netinfo_config(config_netinfo); #endif /* HAVE_NETINFO */ #if !defined(VMS) && !defined(SYS_VXWORKS) /* find a keyid */ if (info_auth_keyid == 0) req_keyid = 65535; else req_keyid = info_auth_keyid; /* if doesn't exist, make up one at random */ if (!authhavekey(req_keyid)) { char rankey[9]; int j; for (i = 0; i < 8; i++) for (j = 1; j < 100; ++j) { rankey[i] = (char) (ntp_random() & 0xff); if (rankey[i] != 0) break; } rankey[8] = 0; authusekey(req_keyid, KEY_TYPE_MD5, (u_char *)rankey); authtrust(req_keyid, 1); if (!authhavekey(req_keyid)) { msyslog(LOG_ERR, "getconfig: Couldn't generate a valid random key!"); /* HMS: Should this be fatal? */ } } /* save keyid so we will accept config requests with it */ info_auth_keyid = req_keyid; #endif /* !defined(VMS) && !defined(SYS_VXWORKS) */ if (res_fp != NULL) { if (call_resolver) { /* * Need name resolution */ do_resolve_internal(); } } } #ifdef HAVE_NETINFO /* * get_netinfo_config - find the nearest NetInfo domain with an ntp * configuration and initialize the configuration state. */ static struct netinfo_config_state * get_netinfo_config() { ni_status status; void *domain; ni_id config_dir; struct netinfo_config_state *config; if (ni_open(NULL, ".", &domain) != NI_OK) return NULL; while ((status = ni_pathsearch(domain, &config_dir, NETINFO_CONFIG_DIR)) == NI_NODIR) { void *next_domain; if (ni_open(domain, "..", &next_domain) != NI_OK) { ni_free(next_domain); break; } ni_free(domain); domain = next_domain; } if (status != NI_OK) { ni_free(domain); return NULL; } config = (struct netinfo_config_state *)malloc(sizeof(struct netinfo_config_state)); config->domain = domain; config->config_dir = config_dir; config->prop_index = 0; config->val_index = 0; config->val_list = NULL; return config; } /* * free_netinfo_config - release NetInfo configuration state */ static void free_netinfo_config(struct netinfo_config_state *config) { ni_free(config->domain); free(config); } /* * gettokens_netinfo - return tokens from NetInfo */ static int gettokens_netinfo ( struct netinfo_config_state *config, char **tokenlist, int *ntokens ) { int prop_index = config->prop_index; int val_index = config->val_index; char **val_list = config->val_list; /* * Iterate through each keyword and look for a property that matches it. */ again: if (!val_list) { for (; prop_index < (sizeof(keywords)/sizeof(keywords[0])); prop_index++) { ni_namelist namelist; struct keyword current_prop = keywords[prop_index]; /* * For each value associated in the property, we're going to return * a separate line. We squirrel away the values in the config state * so the next time through, we don't need to do this lookup. */ NI_INIT(&namelist); if (ni_lookupprop(config->domain, &config->config_dir, current_prop.text, &namelist) == NI_OK) { ni_index index; /* Found the property, but it has no values */ if (namelist.ni_namelist_len == 0) continue; if (! (val_list = config->val_list = (char**)malloc(sizeof(char*) * (namelist.ni_namelist_len + 1)))) { msyslog(LOG_ERR, "out of memory while configuring"); break; } for (index = 0; index < namelist.ni_namelist_len; index++) { char *value = namelist.ni_namelist_val[index]; if (! (val_list[index] = (char*)malloc(strlen(value)+1))) { msyslog(LOG_ERR, "out of memory while configuring"); break; } strcpy(val_list[index], value); } val_list[index] = NULL; break; } ni_namelist_free(&namelist); } config->prop_index = prop_index; } /* No list; we're done here. */ if (!val_list) return CONFIG_UNKNOWN; /* * We have a list of values for the current property. * Iterate through them and return each in order. */ if (val_list[val_index]) { int ntok = 1; int quoted = 0; char *tokens = val_list[val_index]; msyslog(LOG_INFO, "%s %s", keywords[prop_index].text, val_list[val_index]); (const char*)tokenlist[0] = keywords[prop_index].text; for (ntok = 1; ntok < MAXTOKENS; ntok++) { tokenlist[ntok] = tokens; while (!ISEOL(*tokens) && (!ISSPACE(*tokens) || quoted)) quoted ^= (*tokens++ == '"'); if (ISEOL(*tokens)) { *tokens = '\0'; break; } else { /* must be space */ *tokens++ = '\0'; while (ISSPACE(*tokens)) tokens++; if (ISEOL(*tokens)) break; } } if (ntok == MAXTOKENS) { /* HMS: chomp it to lose the EOL? */ msyslog(LOG_ERR, "gettokens_netinfo: too many tokens. Ignoring: %s", tokens); } else { *ntokens = ntok + 1; } config->val_index++; /* HMS: Should this be in the 'else'? */ return keywords[prop_index].keytype; } /* We're done with the current property. */ prop_index = ++config->prop_index; /* Free val_list and reset counters. */ for (val_index = 0; val_list[val_index]; val_index++) free(val_list[val_index]); free(val_list); val_list = config->val_list = NULL; val_index = config->val_index = 0; goto again; } #endif /* HAVE_NETINFO */ /* * gettokens - read a line and return tokens */ static int gettokens ( FILE *fp, char *line, char **tokenlist, int *ntokens ) { register char *cp; register int ntok; register int quoted = 0; /* * Find start of first token */ again: while ((cp = fgets(line, MAXLINE, fp)) != NULL) { cp = line; while (ISSPACE(*cp)) cp++; if (!ISEOL(*cp)) break; } if (cp == NULL) { *ntokens = 0; return CONFIG_UNKNOWN; /* hack. Is recognized as EOF */ } /* * Now separate out the tokens */ for (ntok = 0; ntok < MAXTOKENS; ntok++) { tokenlist[ntok] = cp; while (!ISEOL(*cp) && (!ISSPACE(*cp) || quoted)) quoted ^= (*cp++ == '"'); if (ISEOL(*cp)) { *cp = '\0'; break; } else { /* must be space */ *cp++ = '\0'; while (ISSPACE(*cp)) cp++; if (ISEOL(*cp)) break; } } /* Heiko: Remove leading and trailing quotes around tokens */ { int i,j = 0; for (i = 0; i < ntok; i++) { /* Now check if the first char is a quote and remove that */ if ( tokenlist[ntok][0] == '"' ) tokenlist[ntok]++; /* Now check the last char ... */ j = strlen(tokenlist[ntok])-1; if ( tokenlist[ntok][j] == '"' ) tokenlist[ntok][j] = '\0'; } } if (ntok == MAXTOKENS) { --ntok; /* HMS: chomp it to lose the EOL? */ msyslog(LOG_ERR, "gettokens: too many tokens on the line. Ignoring %s", cp); } else { /* * Return the match */ *ntokens = ntok + 1; ntok = matchkey(tokenlist[0], keywords, 1); if (ntok == CONFIG_UNKNOWN) goto again; } return ntok; } /* * matchkey - match a keyword to a list */ static int matchkey( register char *word, register struct keyword *keys, int complain ) { for (;;) { if (keys->keytype == CONFIG_UNKNOWN) { if (complain) msyslog(LOG_ERR, "configure: keyword \"%s\" unknown, line ignored", word); return CONFIG_UNKNOWN; } if (STRSAME(word, keys->text)) return keys->keytype; keys++; } } /* * getnetnum - return a net number (this is crude, but careful) */ static int getnetnum( const char *num, struct sockaddr_storage *addr, int complain, enum gnn_type a_type ) { struct addrinfo hints; struct addrinfo *ptr; int retval; #if 0 printf("getnetnum: <%s> is a %s (%d)\n", num, (a_type == t_UNK) ? "t_UNK" : (a_type == t_REF) ? "t_REF" : (a_type == t_MSK) ? "t_MSK" : "???", a_type); #endif /* Get host address. Looking for UDP datagram connection */ memset(&hints, 0, sizeof (hints)); if (addr->ss_family == AF_INET || addr->ss_family == AF_INET6) hints.ai_family = addr->ss_family; else hints.ai_family = AF_UNSPEC; /* * If we don't have an IPv6 stack, just look up IPv4 addresses */ if (isc_net_probeipv6() != ISC_R_SUCCESS) hints.ai_family = AF_INET; hints.ai_socktype = SOCK_DGRAM; if (a_type != t_UNK) { hints.ai_flags = AI_NUMERICHOST; } #ifdef DEBUG if (debug > 3) printf("getnetnum: calling getaddrinfo(%s,...)\n", num); #endif retval = getaddrinfo(num, "ntp", &hints, &ptr); if (retval != 0 || (ptr->ai_family == AF_INET6 && isc_net_probeipv6() != ISC_R_SUCCESS)) { if (complain) msyslog(LOG_ERR, "getaddrinfo: \"%s\" invalid host address, ignored", num); #ifdef DEBUG if (debug > 0) printf( "getaddrinfo: \"%s\" invalid host address%s.\n", num, (complain) ? ", ignored" : ""); #endif if (retval == 0 && ptr->ai_family == AF_INET6 && isc_net_probeipv6() != ISC_R_SUCCESS) { return -1; } else { return 0; } } memcpy(addr, ptr->ai_addr, ptr->ai_addrlen); #ifdef DEBUG if (debug > 1) printf("getnetnum given %s, got %s (%s/%d)\n", num, stoa(addr), (a_type == t_UNK) ? "t_UNK" : (a_type == t_REF) ? "t_REF" : (a_type == t_MSK) ? "t_MSK" : "???", a_type); #endif freeaddrinfo(ptr); return 1; } #if !defined(VMS) && !defined(SYS_WINNT) /* * catchchild - receive the resolver's exit status */ static RETSIGTYPE catchchild( int sig ) { /* * We only start up one child, and if we're here * it should have already exited. Hence the following * shouldn't hang. If it does, please tell me. */ #if !defined (SYS_WINNT) && !defined(SYS_VXWORKS) (void) wait(0); #endif /* SYS_WINNT && VXWORKS*/ } #endif /* VMS */ /* * save_resolve - save configuration info into a file for later name resolution */ static void save_resolve( char *name, int mode, int version, int minpoll, int maxpoll, u_int flags, int ttl, keyid_t keyid, u_char *keystr ) { #ifndef SYS_VXWORKS if (res_fp == NULL) { #ifndef SYS_WINNT (void) strcpy(res_file, RES_TEMPFILE); #else /* no /tmp directory under NT */ { if(!(GetTempPath((DWORD)MAX_PATH, (LPTSTR)res_file))) { msyslog(LOG_ERR, "cannot get pathname for temporary directory: %m"); return; } (void) strcat(res_file, "ntpdXXXXXX"); } #endif /* SYS_WINNT */ #ifdef HAVE_MKSTEMP { int fd; res_fp = NULL; if ((fd = mkstemp(res_file)) != -1) res_fp = fdopen(fd, "r+"); } #else (void) mktemp(res_file); res_fp = fopen(res_file, "w"); #endif if (res_fp == NULL) { msyslog(LOG_ERR, "open failed for %s: %m", res_file); return; } } #ifdef DEBUG if (debug) { printf("resolving %s\n", name); } #endif (void)fprintf(res_fp, "%s %d %d %d %d %d %d %u %s\n", name, mode, version, minpoll, maxpoll, flags, ttl, keyid, keystr); #ifdef DEBUG if (debug > 1) printf("config: %s %d %d %d %d %x %d %u %s\n", name, mode, version, minpoll, maxpoll, flags, ttl, keyid, keystr); #endif #else /* SYS_VXWORKS */ /* save resolve info to a struct */ #endif /* SYS_VXWORKS */ } /* * abort_resolve - terminate the resolver stuff and delete the file */ static void abort_resolve(void) { /* * In an ideal world we would might reread the file and * log the hosts which aren't getting configured. Since * this is too much work, however, just close and delete * the temp file. */ if (res_fp != NULL) (void) fclose(res_fp); res_fp = NULL; #ifndef SYS_VXWORKS /* we don't open the file to begin with */ #if !defined(VMS) (void) unlink(res_file); #else (void) delete(res_file); #endif /* VMS */ #endif /* SYS_VXWORKS */ } /* * do_resolve_internal - start up the resolver function (not program) */ /* * On VMS, this routine will simply refuse to resolve anything. * * Possible implementation: keep `res_file' in memory, do async * name resolution via QIO, update from within completion AST. * I'm unlikely to find the time for doing this, though. -wjm */ static void do_resolve_internal(void) { int i; if (res_fp == NULL) { /* belch */ msyslog(LOG_ERR, "do_resolve_internal: Fatal: res_fp == NULL"); exit(1); } /* we are done with this now */ (void) fclose(res_fp); res_fp = NULL; #if !defined(VMS) && !defined (SYS_VXWORKS) req_file = res_file; /* set up pointer to res file */ #ifndef SYS_WINNT (void) signal_no_reset(SIGCHLD, catchchild); #ifndef SYS_VXWORKS i = fork(); if (i == 0) { /* * this used to close everything * I don't think this is necessary */ /* * To the unknown commenter above: * Well, I think it's better to clean up * after oneself. I have had problems with * refclock-io when intres was running - things * where fine again when ntpintres was gone. * So some systems react erratic at least. * * Frank Kardel * * 94-11-16: * Further debugging has proven that the above is * absolutely harmful. The internal resolver * is still in the SIGIO process group and the lingering * async io information causes it to process requests from * all file decriptor causing a race between the NTP daemon * and the resolver. which then eats data when it wins 8-(. * It is absolutly necessary to kill any IO associations * shared with the NTP daemon. * * We also block SIGIO (currently no ports means to * disable the signal handle for IO). * * Thanks to wgstuken@informatik.uni-erlangen.de to notice * that it is the ntp-resolver child running into trouble. * * THUS: */ closelog(); kill_asyncio(0); (void) signal_no_reset(SIGCHLD, SIG_DFL); #ifdef DEBUG if (0) debug = 2; #endif # ifndef LOG_DAEMON openlog("ntpd_initres", LOG_PID); # else /* LOG_DAEMON */ # ifndef LOG_NTP # define LOG_NTP LOG_DAEMON # endif openlog("ntpd_initres", LOG_PID | LOG_NDELAY, LOG_NTP); #ifndef SYS_CYGWIN32 # ifdef DEBUG if (debug) setlogmask(LOG_UPTO(LOG_DEBUG)); else # endif /* DEBUG */ setlogmask(LOG_UPTO(LOG_DEBUG)); /* @@@ was INFO */ # endif /* LOG_DAEMON */ #endif ntp_intres(); /* * If we got here, the intres code screwed up. * Print something so we don't die without complaint */ msyslog(LOG_ERR, "call to ntp_intres lost"); abort_resolve(); exit(1); } #else /* vxWorks spawns a thread... -casey */ i = sp (ntp_intres); /*i = taskSpawn("ntp_intres",100,VX_FP_TASK,20000,ntp_intres);*/ #endif if (i == -1) { msyslog(LOG_ERR, "fork() failed, can't start ntp_intres: %m"); (void) signal_no_reset(SIGCHLD, SIG_DFL); abort_resolve(); } #else /* SYS_WINNT */ { /* NT's equivalent of fork() is _spawn(), but the start point * of the new process is an executable filename rather than * a function name as desired here. */ DWORD dwThreadId; fflush(stdout); ResolverThreadHandle = CreateThread( NULL, /* no security attributes */ 0, /* use default stack size */ (LPTHREAD_START_ROUTINE) ntp_intres, /* thread function */ NULL, /* argument to thread function */ 0, /* use default creation flags */ &dwThreadId); /* returns the thread identifier */ if (ResolverThreadHandle == NULL) { msyslog(LOG_ERR, "CreateThread() failed, can't start ntp_intres"); abort_resolve(); } } #endif /* SYS_WINNT */ #else /* VMS VX_WORKS */ msyslog(LOG_ERR, "Name resolution not implemented for VMS - use numeric addresses"); abort_resolve(); #endif /* VMS VX_WORKS */ }